Booting into busybox

Narcis Garcia informatica at actiu.net
Sun Oct 25 11:18:44 UTC 2015


Read-only mount is not a problem to copy files from there.

Before running fsck you'll need to umount.


El 25/10/15 a les 10:19, Andrés Muñiz Piniella ha escrit:
> El 25 de octubre de 2015 08:26:55 GMT+00:00, Narcis Garcia <informatica at actiu.net> escribió:
>> I recommend you to to try*:
>>
>> 1. Boot from Live CD/USB
>> 2. Perform a memory test (boot menu)
>> 3. IF memtest completed clean, then boot again with Live CD/USB
>> 4. +IF target partition (/dev/sda1?) is mountable, THEN:
>> 4.1. Make a complete backup of all directories & files
>> 4.2. Run a complete reparation**: fsck -cy /dev/sda1
> 
> This is where I left off
> Thanks! Had not done with -cy or -ccy. I learnt the -y is critical one. Last time I put a 1D6 and a paper wieght to hold the Y key down.
> 
>> 4.3. Make a second backup of all directories & files repaired
>>
> 
> If it is mounted but not writable as Tim pointed out, what is the solution?
> 
>> After fsck check, you can ask how many bad blocks were marked:
>> dumpe2fs -b /dev/sda1 2>&1 | grep -ive 'dumpe2fs' | wc -l
>>
> 
> After how many would you consider the drive to be ready for failure? Or do I let disc utility figure that out.
> 
>> (*) This recipe (as other procedures) can loss your data. I cannot sure
>> you this procedure as valid without having direct access to computer.
>>
> Good warning thanks!
> 
> 
>> (**) -cy perfoms a read only check. To perform a read&write check you
>> can use -ccy (even more long in hours)
>>
>>
>> El 25/10/15 a les 08:54, Tim ha escrit:
>>>
>>>
>>> On 25/10/15 10:55, Andrés Muñiz Piniella wrote:
>>>> El 24 de octubre de 2015 16:07:40 GMT+01:00, "Andrés Muñiz Piniella"
>> <a75576 at alumni.tecnun.es> escribió:
>>>>> El 23 de octubre de 2015 20:31:29 GMT+01:00, "Andrés Muñiz
>> Piniella"
>>>>> <a75576 at alumni.tecnun.es> escribió:
>>>>>>
>>>>>> El 11 de octubre de 2015 14:02:52 GMT+01:00, Erick Brunzell
>>>>>> <lbsolost at yahoo.com> escribió:
>>>>>>> On 10/11/2015 03:52 AM, Andrés Muñiz Piniella wrote:
>>>>>>>> Hello,
>>>>>>>> After grub and after ubuntu gnome splash screen it just loads
>> into
>>>>>>> something called busybox. I then typed the command exit and it
>> gives
>>>>> a
>>>>>>> series of messages but does not shutdown (should it shutdown?)
>>>>>>>> I force reboot and force shutdown with the buttons on the
>> hardware.
>>>>>>> Same result.
>>>>>>>> I tried loading previous kernel versions (.45?) With similar
>>>>>> results.
>>>>>>>> I am using LTS version.
>>>>>>>>
>>>>>>>> Please let me know what details are needed(I will probably need
>> to
>>>>>>> take pictures of the screen) to get this up and running. Thanks!
>>>>>>>> Regards,
>>>>>>>> Andrés
>>>>>>>>
>>>>>>>>
>>>>>>>>
>>>>>>> If you are able to boot a live DVD/USB I'd run the filesystem
>> check 
>>>>>>> offered by Gparted on only your Linux partitions. Do not perform
>> any 
>>>>>>> other partition manipulations to avoid possible data loss! I'm
>>>>>>> attaching 
>>>>>>> a screenshot of Gparted just as an example. In that example I 
>>>>>>> right-clicked on /dev/sda1 to display the function menu. When the
>>
>>>>>>> filesystem check is complete you'll be able to view the results
>> and
>>>>>> see
>>>>>>> if any errors were fixed or still persist.
>>>>>>>
>>>>>>> Lance
>>>>>> Finally got hold of a live CD.
>>>>>> Thanks Lance! No errors found.
>>>>>>
>>>>>> Why else would this come up?
>>>>> Hi all,
>>>>>
>>>>> Looked up and found SMART(montools).  See here output of smart.
>>>>>
>>>>> http://paste2.org/Z6LXxgP5
>>>>>
>>>>> Looks like some sectors are broken?
>>>>>
>>>>> Is this when I use dd-rescue?
>>>>>
>>>>> Now gparted does not even recognize it as a ext4 just as unknown. 
>>>>>
>>>>> I ran boot-repair and now grub only sees my other partition.
>> Running an
>>>>> installation of bodhi linux I thought did not exist.
>>>> A bit of an update I ran fsck and it seemed to fix some stuff and I
>> managed to see some of the Ubuntu-gnome instalation files from my other
>> partition. Helped me do som minor backup.
>>>>
>>>> I did a grub update, 
>>>> I then tried to boot into Ubuntu gnome
>>>>
>>>> Some pictures of the commands I tried:
>>>>
>>>> https://my.owndrive.com/index.php/s/oU4tCqFjlLP11Ac
>>>>
>>>> https://my.owndrive.com/index.php/s/9XbnCxaYHgAwP9G
>>>>
>>>> https://my.owndrive.com/index.php/s/aoeeTyhdOdODVdx
>>>>
>>>> Seems that I can do updates it is just not mounted? Can't reboot
>> properly.
>>>>
>>>> Any pointers will be helpful.
>>> Your partition is mounted read-only by the looks of it.
>>>>
>>>
>>>
>>
>> -- 
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> 
> Thank you Tim and Narcís.
> 



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